• specialized mobile radio
https://store.theartofservice.com/the-specialized-mobile-radio-toolkit.html
IPhone 5
Tri-band 2G code division multiple
access|CDMA (800 (CDMA over
Specialized Mobile Radio|ESMR), 850,
1900MHz).Dual-band 3G CDMA/EV-DO
Rev. A and EV-DO Rev. B|Rev. B (850,
1900MHz).Penta-band LTE (Bands 1, 3, 5,
13, 25: 2100, 1800, 850, 700c, 1900MHz).
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https://store.theartofservice.com/the-specialized-mobile-radio-toolkit.html
Cellular frequencies - United States
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The Specialized Mobile Radio|SMR
800MHz band was used exclusively for
Integrated Digital Enhanced
Network|iDEN technology, however,
Sprint Corporation is deploying
CDMA and LTE technology on this
band. , the FCC has approved several
CDMA devices for use on the SMR
band.
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Wireless - Wireless services
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*Professional LMR (Land Mobile Radio)
and SMR (Specialized Mobile Radio)
typically used by business, industrial and
Public Safety entities.
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Taxicab - Dispatching
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Some companies don't operate their
own radio system and instead
subscribe to an Specialized Mobile
Radio system
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WiDEN
'Wideband Integrated Digital Enhanced
Network', or 'WiDEN', is a software upgrade
developed by Motorola for its iDEN enhanced
specialized mobile radio (or ESMR) wireless
telephony protocol. WiDEN allows
compatible subscriber units to communicate
across four 25kHz channels combined, for up
to 100 kbit/s of bandwidth. The protocol is
generally considered a 2.5G wireless cellular
technology.
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Sprint PCS - iDEN (Shut down)
Sprint Nextel operated an iDEN
nationwide network in the 800MHz
Specialized Mobile Radio|SMR frequency
band
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Specialized Mobile Radio
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Specialized Mobile Radio is a term defined
in US Federal Communications
Commission|Federal Communications
Commission (FCC) regulations
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Specialized Mobile Radio - History
1
The FCC web site has a page under
the Wireless Telecommunication
Bureau defining Specialized Mobile
Radio Service
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CTIA – The Wireless Association
'CTIA – The Wireless Association' is an
industry trade group that represents the
international wireless telecommunications
industry. Its members include Mobile
phone|cellular, personal communication
services and enhanced specialized mobile
radio providers and suppliers, and providers
and manufacturers of wireless data services
and products. CTIA stood for Cellular
Telecommunications Industry Association,
and, between 2000 and 2004, as the Cellular
Telecommunications and Internet
Association.
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Mobile Radio - Disambiguation: Two-way versus telephone
Two-way radio is primarily a Dispatch
(logistics)|dispatch tool intended to
communicate in simplex or half-duplex
modes using push-to-talk, and primarily
intended to communicate with other radios
rather than telephones. These systems run
on push-to-talk-based infrastructure such as
Nextel's iDEN, Specialized Mobile Radio
(SMR), MPT-1327, Enhanced Specialized
Mobile Radio (ESMR) or conventional twoway systems. Certain modern two-way radio
systems may have full-duplex telephone
capability.
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Mobile phone spam - Enforcement in small claims court
165) says: “Both the statute and our rules
prohibit these calls, with limited exceptions,
‘to any telephone number assigned to a
paging service, cellular telephone service,
specialized mobile radio service, or other
common carrier service, or any service for
which the called party is charged.’ This
encompasses both voice calls and 'text calls'
to wireless numbers including, for example,
short message service (SMS) calls, provided
the call is made to a telephone number
assigned to such service.” (citations omitted).
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Nextel
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Nextel's network operated in the
800MHz Specialized Mobile Radio
band and used iDEN technology
developed by Motorola
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Nextel - History
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The founders choose the name FleetCall
because the company's network used the
800MHz Specialized Mobile Radio
frequencies designated by the Federal
Communications Commission for use in
fleet vehicles|fleet dispatch
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Nextel - Innovations and technologies
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Unlike other cellular networks, the Nextel
network operated in the Specialized
Mobile Radio band, and Nextel was one of
the first providers in the United States to
offer a national digital cellular coverage
footprint
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Nextel - Radio interference
Before rebanding, Public Safety,
Business/Industrial, SMR and Specialized
Mobile Radio|ESMR's both operate in the
851-861MHz range. ESMR has exclusive
use of the 861-866MHz range, and Public
Safety has exclusive use of the 866869MHz range.
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Clearnet Communications - History
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was launched by The Lenbrook Group
in the early 1980s as a national
provider of Specialized Mobile Radio
(SMR), two-way radio systems
commonly used by taxicab and
package delivery services
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